Spreadsheet: Start making a spreadsheet application

Applications/Spreadsheet/SpreadsheetView.h

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+/*
+ * Copyright (c) 2020, the SerenityOS developers.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include "Spreadsheet.h"
+#include <LibGUI/AbstractTableView.h>
+#include <LibGUI/ModelEditingDelegate.h>
+#include <LibGUI/Widget.h>
+#include <string.h>
+
+namespace Spreadsheet {
+
+class SpreadsheetView final : public GUI::Widget {
+    C_OBJECT(SpreadsheetView);
+
+public:
+    ~SpreadsheetView();
+
+    const Sheet& sheet() const { return *m_sheet; }
+
+private:
+    SpreadsheetView(Sheet&);
+
+    class EditingDelegate : public GUI::StringModelEditingDelegate {
+    public:
+        EditingDelegate(const Sheet& sheet)
+            : m_sheet(sheet)
+        {
+        }
+        virtual void set_value(const GUI::Variant& value) override;
+
+    private:
+        bool m_has_set_initial_value { false };
+        const Sheet& m_sheet;
+    };
+
+    class TableCellPainter final : public GUI::TableCellPaintingDelegate {
+    public:
+        TableCellPainter(const GUI::TableView& view)
+            : m_table_view(view)
+        {
+        }
+        void paint(GUI::Painter&, const Gfx::IntRect&, const Gfx::Palette&, const GUI::ModelIndex&) override;
+
+    private:
+        const GUI::TableView& m_table_view;
+    };
+
+    NonnullRefPtr<Sheet> m_sheet;
+    RefPtr<GUI::TableView> m_table_view;
+};
+
+}
+
+AK_BEGIN_TYPE_TRAITS(Spreadsheet::SpreadsheetView)
+static bool is_type(const Core::Object& object) { return !strcmp(object.class_name(), "SpreadsheetView"); }
+AK_END_TYPE_TRAITS()